You mean "Isabel Alfonsa" and "Maria de los Dolores," don't you?
There is at least one widely published phopto of Isabel Alfonsa's wedding to Count Zamoisky, the last such event to take place at the Palacio de Oriente. Photos of her children are even more difficult to get. I have one of her son which was taken earlier this summer at an event in Spain. Not one photographer there knew who the man was, a first cousin of the King of Spain!
As for Dolores' photos...they are not very common. There are a few in "YO MARIA DE BORBON," the wonderful biography of the late Countess of Barcelona. I also have some photos of Dolores (Dola) in a photo album of the wedding of Esperanza which the late Countess of Barcelona sold to me three years ago!
Arturo Beéche